boot-directdisk.bbclass: Fix media generation problems with vmdk

The various populate methods need to accept a path as an argument vs
using hard expanded variables.  In the case of the boot-directdisk
class it uses a different path for HDDDIR but it gets eclipsed by the
the class definition at the point in time ${HDDDIR} gets expanded.

The logical fix is to pass the arguments to the functions as opposed
to using globally expanded variables from the class definitions.

This patch changes 3 things:
1) syslinux_hddimg_populate takes an argument for the destination
2) syslinux_iso_populate takes an argument for the destination
3) populate is changed to boot_direct_populate because there
   was a conflict with it overriding the populate in bootimg.bbclass

[YOCTO #3994]

(From OE-Core rev: 63d164b755b984021f7e3cdba7280918ded6e821)

Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/classes/boot-directdisk.bbclass

@@ -61,15 +61,15 @@ DISK_SIGNATURE ?= "${DISK_SIGNATURE_GENERATED}"
 SYSLINUX_ROOT ?= "root=/dev/sda2"
 SYSLINUX_TIMEOUT ?= "10"
 
-populate() {
-	DEST=$1
-	install -d ${DEST}
+boot_direct_populate() {
+	dest=$1
+	install -d $dest
 
 	# Install bzImage, initrd, and rootfs.img in DEST for all loaders to use.
-	install -m 0644 ${STAGING_KERNEL_DIR}/bzImage ${DEST}/vmlinuz
+	install -m 0644 ${STAGING_KERNEL_DIR}/bzImage $dest/vmlinuz
 
 	if [ -n "${INITRD}" ] && [ -s "${INITRD}" ]; then
-		install -m 0644 ${INITRD} ${DEST}/initrd
+		install -m 0644 ${INITRD} $dest/initrd
 	fi
 
 }
@@ -79,13 +79,13 @@ build_boot_dd() {
 	HDDIMG="${S}/hdd.image"
 	IMAGE=${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.hdddirect
 
-	populate ${HDDDIR}
+	boot_direct_populate $HDDDIR
 
 	if [ "${PCBIOS}" = "1" ]; then
-		syslinux_hddimg_populate
+		syslinux_hddimg_populate $HDDDIR
 	fi
 	if [ "${EFI}" = "1" ]; then
-		grubefi_hddimg_populate
+		grubefi_hddimg_populate $HDDDIR
 	fi
 
 	BLOCKS=`du -bks $HDDDIR | cut -f 1`

meta/classes/bootimg.bbclass

@@ -86,10 +86,10 @@ build_iso() {
 	populate ${ISODIR}
 
 	if [ "${PCBIOS}" = "1" ]; then
-		syslinux_iso_populate
+		syslinux_iso_populate ${ISODIR}
 	fi
 	if [ "${EFI}" = "1" ]; then
-		grubefi_iso_populate
+		grubefi_iso_populate ${ISODIR}
 		build_fat_img ${EFIIMGDIR} ${ISODIR}/efi.img
 	fi
 
@@ -203,10 +203,10 @@ build_hddimg() {
 		populate ${HDDDIR}
 
 		if [ "${PCBIOS}" = "1" ]; then
-			syslinux_hddimg_populate
+			syslinux_hddimg_populate ${HDDDIR}
 		fi
 		if [ "${EFI}" = "1" ]; then
-			grubefi_hddimg_populate
+			grubefi_hddimg_populate ${HDDDIR}
 		fi
 
 		build_fat_img ${HDDDIR} ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.hddimg

meta/classes/grub-efi.bbclass

@@ -42,19 +42,20 @@ grubefi_populate() {
 }
 
 grubefi_iso_populate() {
-	grubefi_populate ${ISODIR}
+	iso_dir=$1
+	grubefi_populate $iso_dir
 	# Build a EFI directory to create efi.img
 	mkdir -p ${EFIIMGDIR}/${EFIDIR}
-	cp ${ISODIR}/${EFIDIR}/* ${EFIIMGDIR}${EFIDIR}
-	cp ${ISODIR}/vmlinuz ${EFIIMGDIR}
+	cp $iso_dir/${EFIDIR}/* ${EFIIMGDIR}${EFIDIR}
+	cp $iso_dir/vmlinuz ${EFIIMGDIR}
 	echo "EFI\\BOOT\\${GRUB_IMAGE}" > ${EFIIMGDIR}/startup.nsh
-	if [ -f "${ISODIR}/initrd" ] ; then
-		cp ${ISODIR}/initrd ${EFIIMGDIR}
+	if [ -f "$iso_dir/initrd" ] ; then
+		cp $iso_dir/initrd ${EFIIMGDIR}
 	fi
 }
 
 grubefi_hddimg_populate() {
-	grubefi_populate ${HDDDIR}
+	grubefi_populate $1
 }
 
 python build_grub_cfg() {

meta/classes/syslinux.bbclass

@@ -53,14 +53,16 @@ syslinux_populate() {
 }
 
 syslinux_iso_populate() {
-	syslinux_populate ${ISODIR} ${ISOLINUXDIR} isolinux.cfg
-	install -m 0644 ${STAGING_DATADIR}/syslinux/isolinux.bin ${ISODIR}${ISOLINUXDIR}
-	install -m 0644 ${STAGING_DATADIR}/syslinux/ldlinux.c32 ${ISODIR}${ISOLINUXDIR}
+	iso_dir=$1
+	syslinux_populate $iso_dir ${ISOLINUXDIR} isolinux.cfg
+	install -m 0644 ${STAGING_DATADIR}/syslinux/isolinux.bin $iso_dir${ISOLINUXDIR}
+	install -m 0644 ${STAGING_DATADIR}/syslinux/ldlinux.c32 $iso_dir${ISOLINUXDIR}
 }
 
 syslinux_hddimg_populate() {
-	syslinux_populate ${HDDDIR} ${SYSLINUXDIR} syslinux.cfg
-	install -m 0444 ${STAGING_DATADIR}/syslinux/ldlinux.sys ${HDDDIR}${SYSLINUXDIR}/ldlinux.sys
+	hdd_dir=$1
+	syslinux_populate $hdd_dir ${SYSLINUXDIR} syslinux.cfg
+	install -m 0444 ${STAGING_DATADIR}/syslinux/ldlinux.sys $hdd_dir${SYSLINUXDIR}/ldlinux.sys
 }
 
 syslinux_hddimg_install() {